How to replace the left side catalytic converter on a 2500 Series on GMC Yukon?

The initial step to replace the left side Catalytic Converter in a 2500 series vehicle involves elevating and stabilizing the vehicle. Remove the skid plate following the order of unscrewing rear oil pan skid plate bolts and taking off 2 front oil pan skid plate bolts if your vehicle has this equipment component. Remove the Muffler. The procedure starts with removal of the left front connector position assurance (CPA) retainer followed by separation between the left front heated Oxygen Sensor (HO2S) electrical connector and engine wiring harness before removing the left rear cpa retainer. Use a screwdriver to remove the left rear ho2s electrical connector which connects to the engine wiring harness and then unscrew the Catalytic Converter to Exhaust Manifold nuts to separate the Catalytic Converter from the Exhaust Manifold studs. Catalytic Converter hanger should be extracted out of its position within the hanger bracket. Plan to replace the Catalytic Converter. Remove both the exhaust seal and utility Oxygen Sensor components first. Before installing a new Catalytic Converter assembly, apply anti-seize compound gm p/n 12377953 or similar equivalent to the threads of the old sensors. Secure the ho2s sensors on the Catalytic Converter assembly with a torque of 42 n.m (31 lb ft). Position the hanger bracket inside the new exhaust seal before inserting the Catalytic Converter hanger through the hole. Attach the converter to the Exhaust Manifold studs while applying 50 n.m (37 lb ft) torque to the mounting nuts. The left rear ho2s electrical connector needs to be wired to the engine harness while the left rear cpa retainer needs to be installed before wiring the left front ho2s electrical connector to the engine harness for left front cpa retainer installation. Complete the installation by positioning the oil pan skid plate followed by tightening the 2 rear bolts to a secure fit then install the 2 front bolts only when equipped to a torque of 28 n.m (21 lb ft). Finally lower the vehicle.

OEM GMC Yukon Catalytic Converter

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34 Catalytic Converters found

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GMC Yukon Catalytic Converter
Part Number: 85521780
$568.56 MSRP: $841.08
You Save: $272.52 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Assembly-Nitrogen Oxide Catalytic (W/Exhaust Pipe); Converter & Pipe; Converter, Catalytic Converter
- Replaces: 84749006
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2023 GMC Yukon | Denali, SLE, SLT | 6 Cyl 3.0 L DIESEL
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GMC Yukon Catalytic Converter
Part Number: 22940415
$1896.42 MSRP: $2834.87
You Save: $938.45 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 15905949
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2014 GMC Yukon | Denali, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 6.2 L FLEX
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GMC Yukon Catalytic Converter
Part Number: 19418958
$1497.91 MSRP: $2236.50
You Save: $738.59 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 20854457, 25904626, 25904629
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2010 GMC Yukon | Denali | 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
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GMC Yukon Catalytic Converter
Part Number: 19418926
$2089.59 MSRP: $3134.37
You Save: $1044.78 (34%)
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 15896590, 20854453
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2014 GMC Yukon | Denali Hybrid, Hybrid, SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV)
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GMC Yukon Catalytic Converter
Part Number: 19418939
$2035.73 MSRP: $3152.45
You Save: $1116.72 (36%)
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 15127418, 25904628, 25824120
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 GMC Yukon | SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
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GMC Yukon Converter
Part Number: 19420113
$1838.04 MSRP: $2747.21
You Save: $909.17 (34%)
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 15746547, 15042331, 15739825
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-2000 GMC Yukon | Denali, SL, SLE, SLT | 8 Cyl 5.7 L GAS
View related parts
GMC Yukon Converter
Part Number: 25146769
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Catalytic Converter; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1996 GMC Yukon | Base, SL, SLE, SLT, Sport | 8 Cyl 5.7 L GAS
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GMC Yukon Catalytic Converter
Part Number: 15975251
Product Specifications
- Other Name: Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996 GMC Yukon | SL, SLE, SLT | 8 Cyl 5.7 L GAS
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GMC Yukon Converter
Part Number: 25146311
Product Specifications
- Other Name: Converter, Catalytic Converter; Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 GMC Yukon | Base, GT, SLE, Sport | 8 Cyl 5.7 L GAS
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GMC Yukon Converter
Part Number: 25146029
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Catalytic Converter; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1996 GMC Yukon | Base, SL, SLE, SLT, Sport | 8 Cyl 5.7 L GAS
View related parts
GMC Yukon Converter
Part Number: 15991749
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter, Exhaust Pipe; Catalytic Converter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1997 GMC Yukon | Base, SL, SLE, SLT, Sport | 8 Cyl 6.5 L DIESEL
View related parts
GMC Yukon Catalytic Converter
Part Number: 15991751
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997 GMC Yukon | SL, SLE, SLT | 8 Cyl 6.5 L DIESEL
View related parts
GMC Yukon Catalytic Converter
Part Number: 88968527
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter
- Replaces: 25131438, 25130001, 25130005, 25143420
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1995 GMC Yukon | Base, GT, SLE, SLT, Sport | 8 Cyl 5.7 L GAS
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GMC Yukon Catalytic Converter, Driver Side
Part Number: 19420127
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Exhaust Pipe; Front Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Driver Side
- Replaces: 15199817
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2005 GMC Yukon | Denali | 8 Cyl 6.0 L GAS
View related parts
GMC Yukon Catalytic Converter, Passenger Side
Part Number: 15077752
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Exhaust Pipe; Front Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2005 GMC Yukon | Denali | 8 Cyl 6.0 L GAS
View related parts
GMC Yukon Catalytic Converter
Part Number: 19420110
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 25824122, 20854458, 25904627
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2010 GMC Yukon | Denali | 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
View related parts
GMC Yukon Catalytic Converter, Driver Side
Part Number: 15077751
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Exhaust Pipe; Front Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2005 GMC Yukon | Denali | 8 Cyl 6.0 L GAS
View related parts
GMC Yukon Catalytic Converter
Part Number: 15733231
Product Specifications
- Other Name: Converter Assembly-Catalytic (W/Exhaust Manifold Pipe T; Converter; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-2000 GMC Yukon | Denali, SL, SLE, SLT | 8 Cyl 5.7 L GAS
View related parts
GMC Yukon Catalytic Converter
Part Number: 15079086
Product Specifications
- Other Name: Converter, 3Way Catalytic (W/Exhaust Manifold Pipe); Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 GMC Yukon | SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
View related parts
GMC Yukon Catalytic Converter
Part Number: 19418928
$1822.14 MSRP: $2723.32
You Save: $901.18 (34%)
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 15036169, 15076458, 15756278, 10395212, 15052911, 15076459, 15756279, 15246489, 15082124, 19206638
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2005, 2000-2001 GMC Yukon | SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS

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GMC Yukon Catalytic Converter

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GMC Yukon Catalytic Converter Parts Questions & Experts Answers

Catalytic Converter
19418958
Q: How to replace the left side catalytic converter on a 2500 Series on GMC Yukon?
A: The initial step to replace the left side Catalytic Converter in a 2500 series vehicle involves elevating and stabilizing the vehicle. Remove the skid plate following the order of unscrewing rear oil pan skid plate bolts and taking off 2 front oil pan skid plate bolts if your vehicle has this equipment component. Remove the Muffler. The procedure starts with removal of the left front connector position assurance (CPA) retainer followed by separation between the left front heated Oxygen Sensor (HO2S) electrical connector and engine wiring harness before removing the left rear cpa retainer. Use a screwdriver to remove the left rear ho2s electrical connector which connects to the engine wiring harness and then unscrew the Catalytic Converter to Exhaust Manifold nuts to separate the Catalytic Converter from the Exhaust Manifold studs. Catalytic Converter hanger should be extracted out of its position within the hanger bracket. Plan to replace the Catalytic Converter. Remove both the exhaust seal and utility Oxygen Sensor components first. Before installing a new Catalytic Converter assembly, apply anti-seize compound gm p/n 12377953 or similar equivalent to the threads of the old sensors. Secure the ho2s sensors on the Catalytic Converter assembly with a torque of 42 n.m (31 lb ft). Position the hanger bracket inside the new exhaust seal before inserting the Catalytic Converter hanger through the hole. Attach the converter to the Exhaust Manifold studs while applying 50 n.m (37 lb ft) torque to the mounting nuts. The left rear ho2s electrical connector needs to be wired to the engine harness while the left rear cpa retainer needs to be installed before wiring the left front ho2s electrical connector to the engine harness for left front cpa retainer installation. Complete the installation by positioning the oil pan skid plate followed by tightening the 2 rear bolts to a secure fit then install the 2 front bolts only when equipped to a torque of 28 n.m (21 lb ft). Finally lower the vehicle.